"The World of the Married" (2020)
- Peak viewership rating: 28.37%
- Average viewership rating: 18.82%
Please note that these ratings are for South Korea only and may vary in other countries or regions. Additionally, these ratings are constantly being updated, so there might have been higher-rated Korean dramas after January 2023 that I may not have access to currently. To ensure the most up-to-date information, I recommend checking relevant sources for the current highest-rated Korean dramas.